Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 22, Issue 13, Pages -Publisher
MDPI
DOI: 10.3390/ijms22136652
Keywords
gastric preinvasive neoplasia; early gastric cancer; signet ring cell gastric carcinoma; mucins expression; molecular markers
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The article reviews the diagnostic and prognostic values of molecular markers in gastric cancer, focusing on the correlation between molecular alterations and prognosis in preinvasive neoplasia and early gastric cancer, as well as the (immuno)histochemical characterization of diffuse-type gastric cancer. The aim is to evaluate suitable biomarkers used in the pre-surgical phase for distinguishing patients with different prognoses and determining the best therapeutic strategy.
Prognosis of gastric cancer is dramatically improved by early diagnosis. Correa's cascade correlates the expression of some molecular markers with the progression of preneoplastic lesions toward carcinoma. This article reviews the diagnostic and prognostic values of molecular markers in complete (MUC2) and incomplete (MUC2, MUC5AC, and MUC6) intestinal metaplasia, gastric dysplasia/intra-epithelial neoplasia, and early gastric cancer. In particular, considering preinvasive neoplasia and early gastric cancer, some studies have demonstrated a correlation between molecular alterations and prognosis, for example, mucins phenotype in gastric dysplasia, and GATA6, TP53 mutation/LOH and MUC6 in early gastric cancer. Moreover, this review considers novelties from the literature regarding the (immuno)histochemical characterization of diffuse-type/signet ring cell gastric cancer, with particular attention to clinical outcomes of patients. The aim of this review is the evaluation of the state of the art regarding suitable biomarkers used in the pre-surgical phase, which can distinguish patients with different prognoses and help decide the best therapeutic strategy.
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